SU1077707A1 - Vertical multispindle lathe - Google Patents

Description

FIELD: machine tool industry. A vertical turning lathe multi-spindle machine is known that contains a column mounted on the base with a tool calipers moving on it, an indexable table with spindles mounted in it 1. A disadvantage of the known machine is the low machining accuracy due to spindle installation errors, table indexing errors, and also the gaps between the table and the base. The aim of the invention is to improve the accuracy of the machine by compensating for the spindle installation error and the table indexing mechanism, as well as the gaps between the table and the base. The goal is achieved by the fact that in a lathe vertical multi-spindle machine, containing a column mounted on the base with calipers for black and finishing operations mounted on the base, an indexable table with spindles mounted in it, position sensors and stops, the finishing operations calipers are equipped with horizontal carriages with cutting tools, on which position sensors are installed with the possibility of interaction with fixed supports on the table, the number of which is equal to the number of supports for finishing operations. FIG. 1 shows a machine, a general view; in fig. 2 shows section A-A in FIG. 1. The machine contains a base 1, on which columns A-2 are rigidly fixed, with calipers 3–5 moving along it, corresponding to three working positions — rough operations (caliper 3) and finishing operations (calipers 4 and 5). The tool b on calipers 4 and 5 is fixed on a horizontal carriage 7 moving along the respective guides from the actuator 8, which is turned on from the machine commander, and off on the position sensor 9 mounted on the carriage 7. Through the lever 10, the sensor is folded 9 interacts with stops 11 mounted on a table 12 on which spindles with cartridges 13-16 are mounted. The number of stops 11 is equal to the number of finish supports (the position of the machine, in this case, two. In this case, the stops 11 are displaced in the vertical direction thus , each lever has only one of the stops. Each of the levers 10 is equipped with a spring 17 associated with column 2. The machine works as follows. In the initial position, the supports 3-5 are in the extreme upper position, The spindle drive is turned off. At that, the position sensor 9 interacts with the stop 11. The cycle starts with the command from the commander on moving the carriages 7 to the extreme right, the position sensor 9 moves away from the lever 10, after which the command for indexing the table 12 is sent, the spindle and with the cartridges moving from one position to another, the table is fixed. At the same time, the spindle axis was shifted at each position relative to tool 6 by the magnitude of the error in indexing and spindle alignment. Accordingly, the stops 11 are also displaced by the same amount. They are mounted on the table 12 on each spindle about its axis. The number of stops 11 is equal to the number of finishing positions. This makes it possible to adjust the levers 10 for each finishing position. Since the spring 17 constantly presses the lever 10 against the stops 11, the plane of the rod 10, which interacts with the position sensor 9, will move. This leads to the fact that no matter what spindle is at this finishing position, the axis of rotation with respect to the tool on the carriage 7 occupies a constant position after the carriage exits into the working position. After fixing the table 12, the commander orders the actuators 8 to move to the left the carriages 7, which stop after the corresponding command of the position sensor 9. As the plane of the lever 10 is displaced by an amount equal to the offset of the axis of rotation of the spindle, the cutting tool 6 will be displaced by the same value, therefore The size from the spindle axis to the tool for the next spindle will remain constant. Next, a command is issued for processing the details. After processing is complete, the calipers are returned to their original position. Then the cycle is repeated. Thus, the movement of the carriages 7 in the direction of the dimensions of the workpiece occurs automatically by the amount necessary to compensate for the indicated errors. The use of an advanced machine greatly improves the accuracy and stability of the workpiece.

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Claims (1)

VERTICAL VERTICAL MNO + · 'GOSHPINDELNY MACHINE, containing a column mounted on the base with sliding calipers for roughing and finishing operations, · indexable table with spindles mounted' in it, position sensors and stops, characterized in that, in order to increase accuracy machining, supports for finishing operations are equipped with horizontal carriages with a cutting tool, on which position sensors are installed with the possibility of interaction with stops fixed on the table,. the number of which is equal to the number of supports of finishing operations.